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UNIT V: Plant Physiology
- Online Test
UNIT V: Plant Physiology
TEST : 5
# UNIT V: Plant Physiology
# TN 11th Botany
Prepare / Learn
Q1.
Which of the biomolecules is common to respiration-mediated breakdown of fats, carbohydrates and proteins?
A.
glucose-6-phosphate
B.
fructose1,6-bisphosphate
C.
pyruvic acid
D.
acetyl CoA
View Solution
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Answer :
Option D
Explaination / Solution:
No Explaination.
# UNIT V: Plant Physiology
# TN 11th Botany
Prepare / Learn
Q2.
Which statement is wrong for Krebs cycle?
A.
there is one point in the cycle where FAD is reduced to FADH
2
B.
during conversion of succinyl CoA to succinic acid, a molecule of GTP is synthesised.
C.
the cycle starts with condensation of acetyl group a.cetyl CoA. with pyruvic acid to yield citric acid
D.
there are three points in the cycle where NAD
+
is reduced to NADH+H
+
E.
there are no point
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Answer :
Option C
Explaination / Solution:
No Explaination.
# UNIT V: Plant Physiology
# TN 11th Botany
Prepare / Learn
Q3.
The three boxes in this diagram represents the three major biosynthetic pathways in aerobic respiration and arrows represent net reacts or products.
Arrows numbered 4, 8 and 12 can be
A.
ATP
B.
H
2
O
C.
FAD or FADH
2
D.
NADH
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Answer :
Option A
Explaination / Solution:
No Explaination.
# UNIT V: Plant Physiology
# TN 11th Botany
Prepare / Learn
Q4.
The energy released metabolic process in which substrate is oxidised without an external electron acceptor is called
A.
glycolysis
B.
fermentation
C.
aerobic respiration
D.
photorespiration
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Answer :
Option B
Explaination / Solution:
No Explaination.
# UNIT V: Plant Physiology
# TN 11th Botany
Prepare / Learn
Q5.
Krebs cycle starts with the formation of six carbon compound by a reaction between
A.
malic acid and acetyl coenzyme
B.
oxaloacetic acid and acetyl coenzyme
C.
succinic acid and pyruvic acid
D.
fumaric acid and pyruvic acid
View Solution
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Answer :
Option B
Explaination / Solution:
No Explaination.
# UNIT V: Plant Physiology
# TN 11th Botany
Prepare / Learn
Q6.
Respiration is a process in which
A.
energy is used up
B.
energy is stored in the form of ADP
C.
energy is released and stored in the form of ATP
D.
energy is not released at all
View Solution
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Answer :
Option C
Explaination / Solution:
No Explaination.
# UNIT V: Plant Physiology
# TN 11th Botany
Prepare / Learn
Q7.
The common phase between aerobic and anaerobic respiration is called
A.
glycolysis
B.
krebs cycle
C.
tricarboxylic acid cycle
D.
oxidative phosphorylation
View Solution
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Answer :
Option A
Explaination / Solution:
No Explaination.
# UNIT V: Plant Physiology
# TN 11th Botany
Prepare / Learn
Q8.
ATP synthesis occurs on/in the
A.
matrix
B.
outer membrane of mitochondrion
C.
innermembrane of mitochondrion
D.
none of the above
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Answer :
Option C
Explaination / Solution:
No Explaination.
# UNIT V: Plant Physiology
# TN 11th Botany
Prepare / Learn
Q9.
Which 5-carbon organic acid of the Krebs cycle is a key compound in the N2 metabolism of a cell
A.
citric acid
B.
fumaric acid
C.
oxalosuccinic acid
D.
α-Ketoglutaric acid
View Solution
Add Work Space
Answer :
Option D
Explaination / Solution:
No Explaination.
# UNIT V: Plant Physiology
# TN 11th Botany
Prepare / Learn
Q10.
Which one of the following acts as a hormone involved in ripening of fruits
A.
naphthalene acetic acid
B.
ethylene
C.
indole acetic acid
D.
zeatin
View Solution
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Answer :
Option B
Explaination / Solution:
No Explaination.
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